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Re: [OM] scales in m/ft et al

Subject: Re: [OM] scales in m/ft et al
From: Thomas Bryhn <thomas.bryhn@xxxxxxxxxx>
Date: Fri, 04 Oct 2002 11:35:01 +0200
At 01:15 04.10.02, Reinholt Letschert wrote:

"Most universal lenses are optimised in such a way, that they
will reach their optimum quality at distances which roughly equal
30 times their focal length. Such it is advisable with magnifications
greater than 1 to reverse the lens in the bellows as to enable
maximum resolution. This is valid for the standard lenses
for the OM-1 and the Zuiko Macro lens 1:3.5/50mm."
End of quotation.

I stand corrected (pun intended). However, at macro distances "30 times their focal lenght" is still very far away, and Olympus has come to the same conclusion as I did: Reverse only when using higher magnification than 1:1. I'd also like to emphasize that close to 1:1 the orientation of the lens doesn't matter at all. Anyone for trying the 50/1.8 at that optimum bellows draw? Only 1500mm (60 inches).

Regards,
Thomas Bryhn


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